JP2009240056A - Series-parallel connection operation control electric circuit of multiset electromagnetic starter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a series-parallel connection operation control electric circuit of a multiset electromagnetic starter wherein heat loss of an electromagnetic starter drive coil is reduced. <P>SOLUTION: Operation of drive coils 102' and 112' provided individually in two or more individual electromagnetic starters 102 and 112 is controlled to energize a parallel or series-parallel connection of relatively low resistance for activation through the use of switches, thus producing a comparatively big electromagnetic starting power. After starting the individual electromagnetic starters, switching is made to a series or series-parallel connection of relatively high resistance in order to reduce a current passing through the drive coils, but the individual electromagnetic starters are still energized to meet characteristics required after start. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is a series-parallel connection operation control electric circuit of a kind of multi-set electromagnetic starter that operates and controls a drive coil installed in each of two or more electromagnetic starters through a switch device. The present invention relates to an electric circuit capable of reducing heat loss of a drive coil of an apparatus.

  Two or more individual electromagnetic starting devices that are driven by an electromagnetic starting reaction caused by passing a current through a driving coil do not change the coil energizing state when the energized starting and energizing starting states are maintained. Since the necessary magnetic excitation current and the current for maintaining energization start are the same, there is a problem that heat loss is large and electric energy is wasted.

  The present invention has been made in view of such a problem, and is a series-parallel connection operation control electric circuit of a kind of multi-set electromagnetic starting device, which generates a relatively large electromagnetic starting force at the time of starting and passes through the drive coil after starting. It is an object of the present invention to provide a series-parallel operation control electric circuit of a multi-set electromagnetic starter that can reduce the current to be supplied, but each electromagnetic starter can still be energized and satisfy the required operational characteristics after starting. .

  The present invention is a series-parallel connection operation control electric circuit of a kind of multi-set electromagnetic starter. Through operation control of a switch device, a normally closed type or normally open type electromagnetic brake, a normally closed type or normally open type electromagnetic clutch, a normally closed type Electromagnetic start that causes an electromagnetic start drive reaction by a type or normally open type electromagnetic switch, normally closed type or normally open type electromagnetic relay, normally closed type or normally open type electromagnetic valve, electromagnetic iron, electromagnetic chain, helical pipe coil or other drive coil Operate drive coils installed in two or more individual electromagnetic starters applied to devices, drive coils and multi-type electromagnetic starters that can be operated in multiple ways by human or mechanical force By controlling, it starts by energizing a parallel or series-parallel connection with a relatively low resistance, and generates a relatively large electromagnetic starting force in the electromagnetic starting device. After starting, the drive coil installed individually in two or more electromagnetic starting devices by operation control through the switch device is switched to the series or series-parallel connection of relatively high resistance to drive coil The individual electromagnetic starter is still energized to satisfy the required operating characteristics after starting, saving electrical energy and reducing the heat loss of the electromagnetic starter drive coil. It is characterized by.

  That is, the present invention is a series-parallel connection operation control electric circuit of a multi-set electromagnetic starter for operating and controlling drive coils respectively installed in two or more electromagnetic starters through a switch device, At the time of start-up, the switch device energizes the drive coil through a parallel or series-parallel connection with a relatively low resistance, and after the start-up, switches to a series or series-parallel connection with a relatively high resistance to switch the drive coil through the connection. It is characterized in that the current passing therethrough is reduced. The main configuration is as follows, for example.

  Switch device (101): It is composed of an electromechanical switch, a relay, an electromagnetic switch, or a solid switch device that is operated by human power, mechanical power, flow power, or electric energy. In response to the operation control operation, AC or DC electric energy is output to the drive coils (102 ′, 112 ′) individually installed in the electromagnetic starter (102) and the electromagnetic starter (112), and the power source is turned on. Parallel operation with relatively low resistance to the drive coils (102 ′, 112 ′) individually installed in the two electromagnetic starting devices through the switch function operation for energization or disconnection, or through the switching operation of the switch device (101) Alternatively, start by energizing in series-parallel connection, and pass the magnetic excitation currents (Ia) and (Ib) through each, and in parallel connection energization After starting, the drive coils (102 ′, 112 ′) individually installed in the two electromagnetic starting devices are further switched by the operation control of the switch device (101), and a series connection or direct connection of relatively high resistances is performed. By passing a relatively small magnetic excitation current (Ic) jointly from the series-connected drive coils (102 ′, 112 ′) in a parallel connection energized state, electromagnetic waves can be generated in a relatively high resistance series or series-parallel energized state. The electromagnetic reaction acting force of the starting device still satisfies the characteristics required for the energized starting action state of the electromagnetic starting device.

  Electromagnetic starter (102, 112): composed of an electromagnetic starter that uses an electromagnetic start reaction drive as drive coils (102 ′) and (112 ′) that individually supply input AC or DC electric energy, or a drive coil and It is installed in a drive coil (102 ') installed in an electromagnetic starter (102) and an electromagnetic starter (112) through a multi-type operation type electromagnetic starter of multi-type operation by human power or mechanical force. The drive coil (112 ′) saves electric energy by controlling the operation of the switch device (101) to start energization with a relatively low resistance in parallel or series-parallel connection and with a series or series-parallel connection with relatively high resistance. The drive coils (102 ′, 112 ′) installed in the individual electromagnetic starting devices (102, 112) are relatively high. When the series or series-parallel power saving energized resistor consists device to satisfy the characteristics required for the energization start working state of individual electromagnetic actuating device (102, 112).

In the series-parallel operation control electric circuit of the multi-set electromagnetic starter, the drive coils (102 ′, 112 ′) individually installed in at least two electromagnetic starters controlled by the switch device are relatively A low resistance parallel or series-parallel connection is switched to a relatively high resistance series or series-parallel connection. The switching method is
(1) The switch device (101) is artificially operated in turn, and the drive coils (102 ′, 112 ′) individually installed in two or more electromagnetic starters are operated and controlled. Switch parallel or series-parallel connection of low resistance and series or parallel series connection of relatively high resistance, or
(2) Operate and control the switch device (101) to control the time extension function, and operate and control the drive coils (102 ′, 112 ′) individually installed in two or more electromagnetic starting devices. Extend the time after connecting in parallel or series-parallel with relatively low resistance, and switch to series or series-parallel connection with relatively high resistance, or
(3) By detecting the current value output to the drive coils (102 ′, 112 ′) through the switch device (101), the drive coils (individually installed in two or more electromagnetic starters) 102 ′, 112 ′) when the energization activation magnetic excitation current value ≧ the set current value, or when the state of the set current value exceeds the set time, the switch device (101) has the drive coil (102 ′, 112 ′). Driven by a series or series-parallel connection of relatively high resistances that control the operation, or
(4) A method of operating and controlling the drive switch device (101) by using two or more of the methods (1), (2), and (3) described above is included.

  In the series-parallel operation control electric circuit of the multi-set electromagnetic starter, each drive coil (102 ′, 112 ′) is a conductor of the same or different material, and a conductor of the same or different conversion cross section, and the same as required. Alternatively, a configuration with different numbers of windings can be selected.

  In the series-parallel operation control electric circuit of the multi-set electromagnetic starter, the drive coils arranged in the respective electromagnetic drive devices can be composed of drive coils having the same or different electrical characteristics.

  In the series-parallel operation control electric circuit of the multi-set electromagnetic starter, the drive coil arranged in each electromagnetic drive unit is normally set as a drive coil installed in an individual electromagnetic starter, and is necessary. Depending on the situation, it can be two sets or two or more sets.

  In the series-parallel operation control electric circuit of the multi-set electromagnetic starter, two sets or two or more sets of drive coils installed in the individual electromagnetic starters are arranged in each electromagnetic drive unit. In this case, it is possible to perform series-parallel switching through operation control of the switch device (101), and to perform series-parallel switching with the drive coil of the other electromagnetic starter.

  The at least two drive coils (102 ', 112') of the series-parallel operation control electric circuit of the multi-set electromagnetic starter are connected in series with a relatively low resistance from a parallel or series-parallel connection with a relatively low resistance. In the method of switching to the series-parallel connection, the position detecting device (individually, at a position where a moving body and a stationary body of one electromagnetic starter start after energization, or at a selected position in the start cycle, is further advanced. 105) is installed, and the drive coil (102 ', 112') of the electromagnetic starter is supplied with energization drive that can be switched to a parallel or series-parallel connection with a relatively low resistance, and then one of the individual electromagnetic starters When the normal energization start of the moving body and the static body belonging to the electromagnetic starter is detected through the installed position detection device (105), the two or two or more currents are directly detected. Driving coils installed in the starting device (102 ', 112') to the switching, switching to a relatively low resistance in parallel or a relatively high resistance of the series or series-parallel connection of series-parallel connection. Or, when the normal energization start of the moving body and the stationary body belonging to the electromagnetic starter is detected through the position detection device (105) installed in one of the individual electromagnetic starters, the switch device (101) is operated and controlled. Further, the drive device (102 ′, 112 ′) individually installed in two or more electromagnetic starting devices is operated and controlled by the switch device (101), so that a relatively low resistance parallel or direct operation is achieved. It is possible to switch from a parallel connection to a series or series-parallel connection with a relatively high resistance.

  The at least two drive coils (102 ′, 112 ′) of the series-parallel operation control electric circuit of the multi-set electromagnetic starter are connected in parallel with a relatively low resistance or in series with a relatively high resistance from a series-parallel connection. In the method of switching to series-parallel connection, the position detection is further individually performed at the position where the moving body and static body of two or more electromagnetic starting devices start after energization, or at the selected position in the starting cycle. After installing the devices (105, 115) and supplying the drive coils (102 ′, 112 ′) of the electromagnetic starter with energization driving that can be switched to parallel or series-parallel connection with a relatively low resistance, the positions installed individually Through mutual operation control of the detection devices (105, 115), all the individual position detection devices (105, 115) start normal energization of moving bodies and static bodies belonging to the electromagnetic starter. When you know, switch directly to the drive coil (102 ', 112') individually installed in the two or more electromagnetic starting devices, relative to the low resistance parallel or series-parallel connection Switch to a series or series-parallel connection with high resistance. Alternatively, when the normal energization start of the moving body and the stationary body belonging to the electromagnetic starting device is detected through all the individually installed position detecting devices (105, 115), the switch device (101) is operated and controlled, and the switch The drive coil (102 ', 112') individually installed in two or two or more electromagnetic starters is operated and controlled by the device (101), and the relative resistance is reduced from parallel or series-parallel connection. It is possible to switch to a series or series-parallel connection with a high resistance.

  In the series-parallel operation control electric circuit of the multi-set electromagnetic starting device, the position detection device (105, 115) can be constituted by a pressure contact operation type electromechanical switch device, or a spring type switch activated by receiving pressure, or , Optical, electromagnetic sensitive, capacitor sensitive, or other known position sensing devices.

  In the series-parallel operation control electric circuit of the multi-set electromagnetic starter, an AC or DC surge current absorber can be selectively installed according to the standard of the electromagnetic starter, and the drive coils (102 ′, 112 ′) are respectively connected in parallel. Connect and open / close the drive coils (102 ′, 112 ′) with the switch device (101), or perform parallel or series-parallel connection with relatively low resistance, or series or series-parallel with relatively high resistance Supports absorption of induction coefficient back electromotive force generated by the drive coils (102 ′, 112 ′) when switching to connection. The configuration of this surge absorber is as follows: (1) When the electrical energy of the drive coils (102 ′, 112 ′) is AC electrical energy, the installed AC surge absorber (103) is a bipolar semiconductor resistance element (varistor). Configuration, or at least two elements of resistors, inductors, and bipolar capacitors connected in series, parallel, or series-parallel, or a single bipolar capacitor, or any other known AC surge absorption circuit device Is done. (2) In the case where the electric energy of the drive coils (102 ′, 112 ′) is DC electric energy having a relatively low voltage, the arranged DC surge absorbing device (113) is an energy composed of a reverse polarity parallel bipolar body. A commutation diode having an accumulation reaction, a resistor, an inductor, a unipolar or bipolar capacitor, or at least two elements are connected in series or in series or parallel, or a single unipolar or bipolar capacitor, or Although it is comprised by a semiconductor resistance element (varistor) or the other well-known alternating current surge absorption circuit apparatus, this surge absorption apparatus can choose installation or non-installation as needed.

  In the series-parallel operation control electric circuit of the multi-set electromagnetic starter, the electromagnetic starter in which the drive coil is individually installed is a normally closed type or normally open type electromagnetic brake, a normally closed type or normally open type electromagnetic clutch, A normally closed or normally open electromagnetic switch, a normally closed or normally open electromagnetic relay, a normally closed or normally open solenoid valve, an electromagnetic iron, an electromagnetic chain, a helical pipe coil or other drive coil causes an electromagnetic start drive reaction. The present invention can be applied to an electromagnetic starter or a multi-operation type electromagnetic starter that can be operated in multiple ways by a drive coil and human or mechanical force.

  According to the present invention, by operating and controlling the drive coils installed in two or more individual electromagnetic starting devices through the operation control of the switch device, the parallel or series-parallel connection of relatively low resistance is energized. After starting the electromagnetic starting device, the drive coils individually installed in two or two or more electromagnetic starting devices by operation control through the switch device are connected in series or directly with a relatively high resistance. Switch to parallel connection to reduce the current passing through the drive coil, but the individual electromagnetic starter can still be energized to satisfy the required operational characteristics after start-up, reducing heat loss and saving electrical energy .

  FIG. 1 is a circuit block diagram showing a first embodiment of the present invention. In the example shown in FIG. 1, two electromagnetic starting devices each having a driving coil are installed in series or by a switch device. It is an electric circuit block diagram of embodiment which carries out operation control of parallel opening and closing. In this example, two electromagnetic starting devices provided with a drive coil are connected in series and parallel to control operation, and the main configuration includes the following.

  The switch device 101 is configured by an electromechanical switch, a relay, an electromagnetic switch, or a solid switch device that is operated by human power, mechanical power, flow power, or electric energy.

The electromagnetic starters 102 and 112 are known normally closed type or normally open type electromagnetic brakes, normally closed type or normally open type in which drive coils 102 'and 112' for individually supplying input AC or DC electric energy are installed. Electromagnetic start drive by electromagnetic clutch, normally closed or normally open electromagnetic switch, normally closed or normally open electromagnetic relay, normally closed or normally open electromagnetic valve, electromagnetic iron, electromagnetic chain, spiral pipe coil or other drive coil It is an electromagnetic starter that causes a reaction, or a multi-operation type electromagnetic starter that performs multi-operation by a drive coil and human or mechanical force.
The individual drive coils 102 ′ and 112 ′ described above can be configured to have the same or different material conductors, and the same or different cross-sectional area conductors, the same or different coil cross-sections, and the same or different number of turns as required.

  The switch device 101 is a drive coil that is individually installed in the electromagnetic starter 102 and the electromagnetic starter 112 in response to an operation for controlling operation of human power, mechanical power, fluid power, or electric energy. 102 'and 112', and a switch function operation for energizing or cutting off power from the power source is performed, or a drive coil 102 'installed individually in two electromagnetic starting devices through a switching operation of the switch device 101 , 112 ′ are started by energizing them in a parallel or series-parallel connection with a relatively low resistance, and the magnetic excitation currents Ia and Ib are respectively passed through them.

  The drive coil 102 ′ installed in the electromagnetic starter 102 and the drive coil 112 ′ installed in the electromagnetic starter 112 are energized and activated with a relatively low resistance in parallel or in series-parallel connection by controlling the operation of the switch device 101. And a relatively high resistance series or series-parallel connection to save electric energy and reduce heat generation, and the drive coils 102 ′ and 112 ′ installed in the individual electromagnetic starters 102 and 112 are relatively The characteristic required for the energization start operation state of the individual electromagnetic starters 102 and 112 is satisfied in the high resistance series or series-parallel power saving energization state.

  Surge absorbers 103 and 113 are selectively installed as AC or DC surge current absorbers according to the electromagnetic starter standard, and are connected in parallel to drive coils 102 'and 112', respectively, and switch coils 101 are used as drive coils. The drive coils 102 ′ and 112 ′ are opened and closed with respect to 102 ′ and 112 ′, or are switched in parallel or series-parallel connection with relatively low resistance, or switched to series or series-parallel connection with relatively high resistance. Supports absorption of the induced back electromotive force that occurs.

  The configuration of this surge absorber is as follows. (1) When the electric energy of the drive coils 102 ′ and 112 ′ is AC electric energy, the installed AC surge absorbing device 103 is composed of a bipolar semiconductor resistance element (varistor), or a resistor, inductor, bipolar capacitor Of these, at least two types of elements are connected in series, parallel, or series-parallel, or are configured with a single bipolar capacitor, or other known AC surge absorbing circuit device. (2) When the electric energy of the drive coils 102 ′ and 112 ′ is DC electric energy having a relatively low voltage, the arranged DC surge absorbing device 113 has an energy storage reaction composed of bipolar bodies of reverse polarity in parallel. A commutation diode, or a resistor, an inductor, a unipolar or bipolar capacitor, at least two types of elements are connected in series or series-parallel, or a single unipolar or bipolar capacitor, or a semiconductor resistance element ( varistor) or other known AC surge absorbing circuit device. However, the surge absorber can be selected to be installed or not installed as required.

  FIG. 2 shows an electric circuit diagram showing a state in which the drive coils individually installed in the two electromagnetic starters of the embodiment of FIG. 1 are energized and driven in a parallel or series-parallel connection with a relatively low resistance. It is.

  After starting with this relatively low resistance parallel or parallel connection energization, the drive coils 102 ′ and 112 ′ individually installed in the two electromagnetic starting devices are further switched by the operation control of the switch device 101, and the relative In a state of energizing in a series connection or series-parallel connection with an extremely high resistance, a relatively small magnetic excitation current Ic is passed jointly with the drive coils 102 'and 112' connected in series.

  FIG. 3 shows an electric circuit showing a state in which a relatively high resistance is connected in series or series-parallel to drive coils individually installed in the two electromagnetic starters of the embodiment of FIG. FIG. When in a series or series-parallel energization state with a relatively high resistance, the electromagnetic reaction force of the electromagnetic starter still satisfies the characteristics required for the energization start action of the electromagnetic starter.

In the above-described series-parallel operation control electric circuit of the multi-set electromagnetic starter, the drive coils 102 ′ and 112 ′ individually installed in at least two electromagnetic starters controlled by the switch device are relatively low. Switching to a series or series-parallel connection of relatively high resistance by parallel or series-parallel connection of resistors includes the following as a switching method.
(1) The switch device 101 is artificially manually operated in order, and the drive coils 102 ′ and 112 ′ individually installed in two or more electromagnetic starters are controlled and relatively controlled. Switch between low-resistance parallel or series-parallel connections and relatively high-resistance series or parallel series connections, or
(2) Operate and control the switch device 101 to control the time extension function, and operate and control the drive coils 102 ′ and 112 ′ individually installed in two or more electromagnetic starting devices, To connect to a relatively low resistance in parallel or series-parallel, extend the time, and then switch to a relatively high resistance series or series-parallel connection in time, or
(3) By detecting the current value output to the drive coils 102 ′ and 112 ′ through the switch device 101, the drive coils 102 ′ and 112 ′ individually installed in two or more electromagnetic starters When the energization activation magnetic excitation current value ≥ set current value or when the set current value state exceeds the set time, the switch device 101 is a series of relatively high resistances for operating and controlling the drive coils 102 ′ and 112 ′. Or drive in series-parallel connection, or
(4) A method of operating and controlling the drive switch device 101 by using two or more of the above methods (1), (2), and (3) is included.

In actual operation, the drive coil disposed in each electromagnetic drive of the series-parallel connection operation control electric circuit of the multi-set electromagnetic starter of the present invention can be as follows.
(1) Consists of drive coils having the same or different electrical characteristics.
(2) The drive coil installed in each electromagnetic starter normally makes one set, and if necessary, makes two sets or two sets or more.
(3) When two sets or two or more sets of drive coils are installed in an electromagnetic starter among them, series-parallel switching is performed through operation control of the switch device 101, and other drive coils of the electromagnetic starter Perform series-parallel switching.

FIG. 4 is a circuit block diagram showing a second embodiment of the present invention. In the series-parallel operation control electric circuit of the multi-set electromagnetic starter according to the first embodiment, at least two drive coils 102 are shown. ', 112' is further advanced to a method of switching from a parallel or series-parallel connection with a relatively low resistance to a series or series-parallel connection with a relatively high resistance, and by installing a position detection device in the electromagnetic starting device, FIG. 5 is an electric circuit block diagram of a second embodiment in which a driving coil is controlled to operate. This includes the following:
(1) A position detecting device 105 is individually installed at a position where a moving body and a stationary body of one of the electromagnetic starting devices start after energization, or at a selected position in the starting cycle, and a drive coil 102 ′ of the electromagnetic starting device is installed. , 112 ′, and a current belonging to the electromagnetic starting device through the position detecting device 105 installed in one of the individual electromagnetic starting devices. When a normal energization start of a stationary body is detected, it is directly switched to the drive coils 102 'and 112' installed in the above-described two or more electromagnetic starters, and a relatively low resistance parallel or series-parallel connection To a relatively high resistance series or series-parallel connection. Alternatively, when a normal energization start of a moving body and a stationary body belonging to the electromagnetic starter is detected through a position detection device 105 installed in one of the individual electromagnetic starters, the switch device 101 is operated and controlled. The drive coils 102 ′ and 112 ′ individually installed in two or two or more electromagnetic starting devices by 101 are connected in series or series-parallel of relatively high resistance from parallel or series-parallel connection of relatively low resistance. Switch to connection.
(2) Position detectors 105 and 115 are installed at positions where the moving body and stationary body of two or more electromagnetic starting devices start after energization, or at selected positions in the starting cycle, respectively. After supplying the drive coils 102 'and 112' with energization driving which can be switched to a parallel or series-parallel connection with a relatively low resistance, all the individual position detection devices are controlled through mutual operation control of the position detection devices 105 and 115 installed individually. When 105 and 115 detect the normal energization start of the moving body and static body belonging to the electromagnetic starter, the drive coils 102 ′ and 112 ′ directly installed in the two or more electromagnetic starters are directly connected to the drive coils 102 ′ and 112 ′. Switching from a relatively low resistance parallel or series-parallel connection to a relatively high resistance series or series-parallel connection. Alternatively, when the normal energization start of the moving body and the static body belonging to the electromagnetic starter is detected through all the individually installed position detection devices 105 and 115, the switch device 101 is operated and controlled, and two more are switched by the switch device 101. Alternatively, by operating and controlling the drive coils 102 'and 112' individually installed in two or more electromagnetic starters, a relatively low resistance parallel or series-parallel connection to a relatively high resistance series or series-parallel Switch to connection.

  These position detecting devices 105 and 115 are constituted by pressure contact operation type electromechanical switch devices, or spring type switches activated by pressure, or optical, electromagnetic sensitive, capacitor sensitive, or other known positions. It is configured using a sensing device. However, this position detection device can be installed or not installed as required.

  In summary, the series-parallel connection operation control electric circuit of the multi-set electromagnetic starting device of the present invention has relatively low drive coils installed individually in two or more individual electromagnetic starting devices. A relatively large electromagnetic starting force and response characteristics are generated in the electromagnetic starting device by energizing and starting with a parallel or series-parallel connection of resistors, and the above two or more electromagnetics are controlled by operation control through the switch device. By switching the drive coil installed in the starter to a relatively high resistance series or series-parallel connected energization state, the electromagnetic starter can maintain the operating state even after energization start, thus saving electric energy and the electromagnetic starter The heat loss of the drive coil can be reduced.

It is the electric circuit block diagram by 1st Embodiment which carries out operation control by opening and closing of a switch apparatus or series or parallel connection which made the example of two electromagnetic starting devices of the drive coil installed separately of this invention. It is an electric circuit diagram of the state of the drive coil of embodiment of FIG. 1, and the state of the parallel or series-parallel connection energization drive of a relatively low resistance. It is an electric circuit diagram of the state of a series or series-parallel connection energization drive of a comparatively high resistance with the drive coil separately installed in the two electromagnetic starting devices of embodiment of FIG. It is an electric circuit block diagram which carries out operation control of a drive coil through the position detection apparatus installed in the electromagnetic starting device of this invention.

Explanation of symbols

101: switch devices 102, 112: electromagnetic starter devices 103, 113: surge absorbers 102 ′, 112 ′: drive coils 105, 115: position detectors Ia, Ib, Ic: magnetic excitation current

Claims (11)

A series-parallel connection operation control electric circuit of a multi-set electromagnetic starter for operating and controlling drive coils respectively installed in two or more electromagnetic starters through a switch device,
At the time of start-up, the switch device energizes the drive coil through a parallel or series-parallel connection with a relatively low resistance, and after the start-up, switches to a series or series-parallel connection with a relatively high resistance to switch the drive coil through the connection. A series-parallel operation control electric circuit of a multi-set electromagnetic starter characterized by reducing a current passing therethrough.   The switch device is artificially operated in order to switch the connection, switch the connection as time elapses, or when the energization activation magnetic excitation current value of the drive coil ≧ the set current value, or the energization activation magnetic excitation current value ≥Switching when the state of the set current value exceeds the set time or switching from a parallel or series-parallel connection with a relatively low resistance to a series or series-parallel connection with a relatively high resistance by either or a combination thereof The series-parallel connection operation control electric circuit of the multi-set electromagnetic starter according to claim 1.   3. The drive coil according to claim 1, wherein each drive coil is composed of a conductor of the same or different material, a conductor of the same or different cross-sectional area, the same or different coil cross-section, and / or the same or different number of turns. Series multi-set electromagnetic starter series-parallel connection operation control electrical circuit.   4. The multi-set electromagnetic starter according to claim 1, wherein the drive coils arranged in each of the electromagnetic drive devices are configured with drive coils having the same or different electrical characteristics. 5. Series-parallel connection operation control electric circuit.   5. The multi-set electromagnetic starter according to claim 1, wherein the drive coils arranged in at least one electromagnetic drive device are one set or two sets or more. Parallel connection operation control electric circuit.   There are two or more sets of drive coils arranged in at least one electromagnetic drive device, and series-parallel switching is performed through operation control of the switch device, and series-parallel switching is performed with drive coils of other electromagnetic starting devices. 6. The series-parallel connection operation control electric circuit of the multi-set electromagnetic starter according to any one of claims 1 to 5, wherein A position detection device is provided for detecting that a moving body or a stationary body of the at least one electromagnetic starting device starts after energization or reaches a selected position in a starting cycle;
After supplying energization driving that can be switched to parallel or series-parallel connection with a relatively low resistance to the drive coil of the electromagnetic starter, when detecting normal energization start of a moving body or static body belonging to the electromagnetic starter through the position detection device The multi-set electromagnetic starter according to any one of claims 1 to 6, wherein the multi-set electromagnetic starter is switched from a parallel or series-parallel connection with a relatively low resistance to a series or series-parallel connection with a relatively high resistance. Series-parallel connection operation control electric circuit.   The multi-set according to claim 7, wherein the position detecting device is installed at a position where a moving body or a stationary body of at least one or all electromagnetic starting devices starts after energization, or at a selected position during a starting cycle. Electric parallel operation control electric circuit of electromagnetic starter.   8. The position detecting device is a pressure contact operation type electromechanical switch device, a spring type switch device activated by pressure, or an optical type, electromagnetic sensitive type or capacitor sensitive type switching device. Or the serial-parallel connection operation control electric circuit of the multi-set electromagnetic starter of Claim 8.   10. The series-parallel connection operation control electric circuit of the multi-set electromagnetic starter according to claim 1, wherein an AC or DC surge current absorber is provided in parallel with the drive coil.   Electromagnetic starter with drive coil installed is normally closed or normally open electromagnetic brake, normally closed or normally open electromagnetic clutch, normally closed or normally open electromagnetic switch, normally closed or normally open electromagnetic Relay, normally closed or normally open electromagnetic valve, electromagnetic iron, electromagnetic chain, spiral pipe coil, electromagnetic starter that causes an electromagnetic start drive reaction by drive coil, or many that can be operated in multiple ways by drive coil and human or mechanical force 11. The series-parallel connection operation control electric circuit for a multi-set electromagnetic starter according to claim 1, which is a system operation type electromagnetic starter.

Images